Expansion of e.g.f. Sum_{k>=0} exp((4^k - 1)*x) * x^k/k!.

A360934

Expansion of e.g.f. Sum_{k>=0} exp((4^k - 1)*x) * x^k/k!.

Terms

    a(0) =1a(1) =1a(2) =7a(3) =73a(4) =1711a(5) =75121a(6) =6743287a(7) =1169659513a(8) =412296162271

External references